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Application of an electronic tongue as a single-run tool for olive oils’ physicochemical and sensory simultaneous assessment

2019Journal article Open access
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dc.contributor.authorRodrigues, Nuno
dc.contributor.authorMarx, Ítala
dc.contributor.authorCasal, Susana
dc.contributor.authorDias, L.G.
dc.contributor.authorVeloso, Ana C.A.
dc.contributor.authorPereira, J.A.
dc.contributor.authorPeres, António M.
dc.date.accessioned2020-02-21T15:12:28Z
dc.date.available2020-02-21T15:12:28Z
dc.date.issued2019
dc.description.abstractOlive oil is highly appreciated due to its nutritional and organoleptic characteristics. However, a huge compositional variation is observed between olive oils, requiring the use of diverse analytical techniques for its classification including titration, spectrophotometry and chromatography, as well as sensory analysis. Chemical analysis is usually time-consuming, expensive and require skilled technicians, while the sensorial ones are dependent upon individual subjective evaluations, even if performed by trained panellists. This work evaluated and demonstrated the feasibility of using a potentiometric electronic tongue, comprising non-specific lipid polymeric and cross-sensitive sensor membranes, coupled with chemometric tools based on different sub-sets of sensors (from 11 to 14 sensors), to predict key quality parameters of olive oils based on single-run assays. The multivariate linear models established for 23 centenarian olive trees from different cultivars allowed predicting peroxide value, oxidative stability, total phenols and tocopherols contents, CIELAB scale parameters (L*, a* and b* values), as well as 11 gustatory-retronasal positive attributes (green, sweet, bitter, pungent, tomato and tomato leaves, apple, banana, cabbage, fresh herbs and dry fruits) with satisfactory accuracy (0.90 ± 0.07 ≤ R2 ≤ 0.98 ± 0.02 for the repeated K-fold-CV procedure, which ensured that 25% of the data was used for internal-validation purposes). The electronic tongue device had an accuracy statistically similar to that achieved with standard analytical techniques, pointing out the versatility of the device for the fast and simultaneous chemical and sensory analysis of olive oil.pt_PT
dc.description.sponsorshipThis work was financially supported by Project POCI-01-0145- FEDER-006984 – Associate Laboratory LSRE-LCM, Project UID/BIO/ 04469/2013 – CEB, Project UID/QUI/50006/2013 - REQUIMTE-LAQV and strategic project PEst-OE/AGR/UI0690/2014 – CIMO all funded by European Regional Development Fund (ERDF) through COMPETE2020 – Programa Operacional Competitividade e Internacionalização (POCI) – and by national funds through FCT – Fundação para a Ciência e a Tecnologia I.P. Ítala G. Marx also acknowledges the research grant provided by Project UID/EQU/50020/2013 and POCI-01-0145-FEDER- 006984.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRodrigues, Nuno; Marx, Ítala; Casal, Susana; Dias, L.G.; Veloso, Ana C.A.; Pereira, J.A.; Peres, António M. (2019). Application of an electronic tongue as a single-run tool for olive oils’ physicochemical and sensory simultaneous assessment. Talanta. ISSN 0039-9140. 197, p. 363-373pt_PT
dc.identifier.doi10.1016/j.talanta.2019.01.055pt_PT
dc.identifier.issn0039-9140
dc.identifier.urihttp://hdl.handle.net/10198/20637
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectChemistrypt_PT
dc.subjectOlive Oilpt_PT
dc.subjectPotentiometrypt_PT
dc.subjectElectronic Nosept_PT
dc.subjectPhysicalpt_PT
dc.titleApplication of an electronic tongue as a single-run tool for olive oils’ physicochemical and sensory simultaneous assessmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEQU%2F50020%2F2013/PT
oaire.citation.endPage373pt_PT
oaire.citation.startPage363pt_PT
oaire.citation.titleTalantapt_PT
oaire.citation.volume197pt_PT
oaire.fundingStream5876
person.familyNameRodrigues
person.familyNameMarx
person.familyNameDias
person.familyNamePereira
person.familyNamePeres
person.givenNameNuno
person.givenNameÍtala
person.givenNameLuís G.
person.givenNameJosé Alberto
person.givenNameAntónio M.
person.identifier1676851
person.identifier107333
person.identifier.ciencia-idF41D-B424-5F78
person.identifier.ciencia-id2717-C420-DEAE
person.identifier.ciencia-id2F11-9092-FAAF
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.ciencia-idCF16-5443-F420
person.identifier.orcid0000-0002-9305-0976
person.identifier.orcid0000-0002-7049-2114
person.identifier.orcid0000-0002-1210-4259
person.identifier.orcid0000-0002-2260-0600
person.identifier.orcid0000-0001-6595-9165
person.identifier.ridGLV-5485-2022
person.identifier.ridL-6798-2014
person.identifier.ridI-8470-2012
person.identifier.scopus-author-id55258560600
person.identifier.scopus-author-id57191503603
person.identifier.scopus-author-id23569169900
person.identifier.scopus-author-id57204366348
person.identifier.scopus-author-id7102331969
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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